The EMD SD35 was one of the builder's first second-generation models, released during the mid-1960s. While the locomotive was not as successful as some of its other designs it did sell a few hundred examples during an era when railroads were only starting to realize the benefits of six-axle power. New features of the SD35, which dated back to the SD28 of 1965 was a redesigned frame and new Spartan Cab, commonly known as the standard cab. While EMD was experiencing growing competition from General Electric it was still in its prime and would make another run of phenomenal success during this time with models like the GP35, GP38 series, SD40 series, and others. About a dozen major railroads purchased the SD35 and a number of these remain in service. One example is known to be formally preserved, Baltimore & Ohio #7402 at the Baltimore & Ohio Railroad Museum, as well as the variant SDP35, Seaboard Air Line #1114 in Hamlet, North Carolina.

To be truthful the Family Lines System was never actually an operating railroad, it was merely a marketing tactic which brought together the allying lines of the Louisville & Nashville, Clinchfield, Seaboard Coast Line, and a number of other smaller road (such as the Georgia Railroad, Atlanta & West Point Railroad, and Western Railway of Alabama otherwise referred to as the West Point Route). With this came a new livery (not unlike the later Seaboard scheme) applied to all with sub-lettering stenciled under locomotive cabs identifying the specific company. This marketing scheme was also short-lived, lasting only from 1972 until 1982 when these railroads merged together formally to create the Seaboard System (itself operating for only a few years).

The three main components of the System were the L&N, Clinchfield, and SCL. The L&N (the first component) was a railroad synonymous with the southern states; it served major cities from New Orleans and Memphis to St. Louis, Atlanta, and later Chicago. The L&N is also one of the few classic fallen flags to never have had its original chartered name change at any point throughout its history, serving its home state and the southeast for over 120 years. As the L&N itself disappeared into the Seaboard System in 1982 just a few years later the Seaboard itself would disappear into CSX Transportation.

Brand/Importer Information:

In 1924 Stephan Schaffan, Sr. founded the Atlas Tool Company in Newark, New Jersey. In 1933 his son, Stephan Schaffan, Jr., came to work for his father at the age of sixteen. Steve Jr. built model airplanes as a hobby and frequented a local hobby shop. Being an enterprising young man, he would often ask the owner if there was anything he could do to earn some extra spending money. Tired of listening to his requests, the hobby-store owner threw some model railroad track parts his way and said, "Here, see if you can improve on this".

In those days, railroad modelers had to assemble and build everything from scratch. Steve Jr. created a "switch kit" which sold so well, that the entire family worked on them in the basement at night, while doing business as usual in the machine shop during the day.

Subsequently, Steve Jr. engineered the stapling of rail to fiber track, along with inventing the first practical rail joiner and pre-assembled turnouts and flexible track. All of these products, and more, helped to popularize model railroading and assisted in the creation of a mass-market hobby. The budding entrepreneur quickly outgrew the limitations of a basement and small garage operation. Realizing they could actually make a living selling track and related products, Steve and his father had the first factory built in Hillside, New Jersey at 413 Florence Avenue in 1947. On September 30, 1949, the Atlas Tool Company was officially incorporated as a New Jersey company.

In 1985, Steve was honored posthumously for his inventions by the Model Railroad Industry Association and was inducted into the Model Railroad Industry Hall of Fame in Baltimore, Maryland. In addition, Steve was nominated and entered into the National Model Railroad Association Pioneers of Model Railroading in 1995.